Adjusting table



' April 13,1926. 1,580,972

' J. F. KEITHMAN ADJUSTI NG TABLE 9 Filed June 23. 1923 3 Sheets-Sheet 1 A'ITORNEY April 13 1926. 1,580,972

J. F. KEITHMAN ADJUSTING TABLE Filed June 25 1923 3 Sheets-Sheet z ATTORNEY April 13 1926.

J. F. KEITHMAN ADJUSTING TABLE:

, 1923 .3 Sheets-Sheet 3 Fil ed June 23 ,llil

INVENTOR Patented Apr. 13, 1926.

JOHN F. KEITHMAN, or CHICAGO, ILLINOIS, ASSIGNOR or onn-roun'rn T WILLIAM 1,580,972 PATENT OFFICE.

r. MANAHAN, or YORKTON, CANADA.

ADJUSTING TABLE.

Application filed June 22 1923. Serial No. 647,289.

To all whom it may concern:

Be it known that I, JOHN F. KEITHMAN,

a subject of the King of Great Britain, residing at Chicago. in the county of Cook and State of Illinois, have invented new'and useful Improvements in Adjusting Tables, of which the following is a specification.

This invention relates to adjusting tables.

and more particularly to adjusting tables of the type such as used by chiropractics, and an object of the invention is-to provide an adjusting table which may be collapsed into a relatively small compact structure to facili,

tate its tranportation or carrying about by the physician, in a suitable carrying case. p Another object of this invention is to provide a chiropractic adjusting table which comprises end sections each including a plurality of adjustably connected legs which are 0 connected in such manner that they move synchronously towards each otherwhen collapsed, or away from each other, during opening or movementinto' operative posi-v tions, each of the legs moving an equal distance from the other or from the central collapsed position, and also td provide dia'g: onal braces pivotally connected to each other and, at their upper ends to the supporting legs, certain of the braces being yieldably connected at their lower ends to the legs I to permit the synchronous movementduring collapsing or spreading.

A further object of the invention is to provide a table as specified in which the central portion of the table is adjustably supported.- for limited pivotal movement to permit its adjustment to properly fit the abdomenof the patient and also to provide means for yieldably supporting the central portion of the table in adjusted positions.

Another object of the invention is to provied a novel construction for connecting the canvas or fabric top of-the table to the side rails thereof and also to provide means for stretching the fabric table top to permit the desired tautness thereof.

A further object is to provide simple and efficient means for securing together and bracing parts of the table structure. j

Other objects of the invention will appear inthe following detailed description taken in connection with the accompanying drawings wherein Fig. 1 is a side'elevation of the improved chiropractic adjusting table.

Fig. 2 is a top plan of the table. Flg. 3 is' a top plan of the table frame having the top removed.

Fig. 4 is a detail view showing the'sup- -1 porting leg structurescollapsed. p f

Fig. 5 is a detail sectional view taken on the line 55 of Fig. 1. j

Fig. 6 is a detail section on, the line 66 of Fig. 3. i i Fig. 7 is a detail section on the line 77 of p 153 Fig. 2 illustrating the manner of connecting the top to the side rails of the table.

Flg. 8 1s a detail'section on the line 8-8 of Flg. 1.

Fig. 9 is a detail section on the line 9- 9 711 of Fig. 1.

Referring more particularly to thedraw ings, the improved chiropractic adjusting table comprises the leg structures 1, two of Which are provided and which are hollow in construction, each leg structure being adapted to support the ends of the table.

Each of the leg structures 1 "comprises four legs 2 which are preferably of tubular construction and are connected by diagonal braces 3. Each of the diagonalfibraces3 comprises a plurality, preferably three relatively thin metal strips 4 which are held in spaced relation at their endsbyspacin'gcoh lars 5 and are held in spaced relation intermediate their ends by, the metal strips of the oppositely extending brace. The braces are pivotally connected intermediate. theirends by suitable pins or rivets 6. The lower ends of the braces 3 are, pivotally connected to collars 8 which are sidable upon the legs 2. Two of the collars 8 are slidably mounted on each leg 2, andthe braces at one side of the leg structu're' 'are connected to one of the collars while the braces which extend at right angles to the first mentioned braces are connected to the other collar, as clearly shown in Fig. 1 ofthe drawings. The collars 8 are yieldably connected so asto permit limited relative movement thereof by means of pins 9 which extend through slots 10 formed in the legs 2 and by coiled springs 11 which are connected to the pins 9 and are positioned within the tubular legs 2, as clearly shown in Fig. 80f the drawings;

The legs 2-have pins 12 on their upper ends which extend into the top side rails; 13 of the table structure. The top side rails 13 are preferably tubular and they are braced and connected laterally by adjustable brace structures 14 and 15. The adjustable brace structures 14 and 15 comprises"v bolts 16 the inner ends of which are connected by turn buckles 17 Heads 18 are mounted :on the ends of the rods -16, the heads 18 are substantially triangular shapedand have pins 19 formed thereon one of which engages in a suitable opening in the rail 13,

4 the table 'by adjustablebrace structures 21 I by fabric loops 36.

which embody turn buckles 22. Depending levers 23 areconnected one to each of the pivoted rail extensions and they have their lower ends connected by chains 24,

which chains are detachably connected to' eachpair. of levers at the sides of the table. The levers 23 are also connected to the piv oted rail extensions by chains or flexible members 25 while they havesprings26 adjustably connected thereto below the chains By varying the connections- 0f the springs 26 with. the respective-levers ofthe pairs, a pressure on and the .positionsof 1 the rail extensions 20 may bevaried to per-' mit adjustment to-propelyfitxthe patient."

The-upward movement of, the pivoted rail extensions 20 is limited chains'or flexible members 26' which are connected to the pivoted extensions 20 and to the bracing.

bars 27 The bracingba-rs'27 are preferably of tubular construction and havepins 28 carried at theirends which extend into the inner legs 2 of each leg structure 1. Spring fasteners or clips 29 are pivotally carried at each end ofthe brace bars 27, and-they are urged by means of compression springs 30 into suitable openings 31 in the legs 2 for detachably connecting the bars 27 to the leg structures 1- and for connecting the leg structuresin table formation. a 7

The table top 35is preferably formed of canvas, pliable leather or any suitable material and it has strips i 36 attached to its under surface and. extending longii tudinally there along. The strips 36 are connected to the fabric top 35 preferably Arcuate rail gripping members 37 engage over the rails 13 and 20, at spacedpoint-s, engaging in the grooves or notches 39 formed in the upper surfaces of the rails so as to permit the table top to lie perfectly; smooth and to" eliminate brace structures 14, 15 and 21.

rough places along the edges of the table. The strips 36 and the pivotal connection between these strips and the members 37 permit adjustment of the rails to stretch the top 1 35 taut.

The table top '35 is stretched and held taut upon the rails by adjustment of the It isdesirable to have the material of which the top 35 is'formed hang downwardly over the outer sides of the rails and rail extensions as shown at 40 in Fig. 7 of the drawings. g I .In Fig. 2 of the drawings pneumatic pillows or cushions 42 of any approved construction are shown. The table top 35 is provided with a longitudinal slot 44 :which is positioned between the longitudinally extending pneumatic pillows or cushions 42 and to permit uniform and even stretching of the top 35, at this point, rods or bars 45 are attached tothe under surface-of the top 35. along each side of the slot 44; The rods 45 are -connected bymeans of flexible chains or analogous members 46.

, Fromthe foregoing; description taken in connectionwith the accompanying drawings it will be apparent that the improved chiropractic tablemay-gbe quickly'and easily taken apart, bydi'sconnecting the'brace structures 14,.15 and 21, and disconnecting the rails 13rand rail extensions-'20 from: the. legs after which the leg structuresmay be collapsedlinto the'position as shownin Fig. 4 of the? drawings. The brace bars 27 may alsobegquickl! andeasily disconnected al-, lowing-the ,various rail portions to be foldedtogether and the entire table may be collapsed into a comparatively small space as to permit it to be carried about by the physician.

It is, of course, to be understood that the invention may be constructed in other manners and the" parts associated in different relations and, therefore, do not desire to be limited in any manner except as setforth inithe claim hereunto appended.

'Havingthus described my invention what I claim is':--

A table of the c lassdesc'ribed including supporting legs, centrally disposed pins at the upper ends of the legs, top rails having openings to receive the pins, adjustable brace rods, removable head members upon the outer ends of said rods, spaced lugs carried by said head members and 'saidlegs and-top rails having openings therein to re ceive the lugs whereby to retain the legs and toprails againstimovement with respect to each other.

In testimony whereof I affix my signature.

' JOHN F KEITHMAN. 

